M8 X 40 HDG CUP SQUARE BOLT DIN603

A Galvanised Cup Square Bolt. It has a domed head with a square anti spin shoulder mainly used for clamping timer or attaching ironmongery to timber.

Diameter:  M8
Pitch:  1.25mm
Length:  40mm
Thread Length:  34.40mm
Head Diameter:  20.65mm
Head Thickness:  4.88mm
Square Size (A/F):  8.58mm
Square Thickness:  5.60mm

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